Priscagamidaeis an extinctfamilyofiguanianlizards[1]known from theLate Cretaceousof Mongolia and China and theEoceneof India,[3]spanning a range from 83.6 to 48.6 million years ago. Probably the earliest priscagamids on indeterminate genera were found inAptian-Albiansediments in "Hobur", Mongolia.[4]It includes thegeneraHeterodontagama,Mimeosaurus,Phrynosomimus,Priscagama,and possiblyPleurodontagama.[5]The first fossils of priscagamids were found in theDjadochtaandKhermeen Tsavformations of Mongolia.[2]More recently they have been found in theCambay Formationin India, leading to the naming ofHeterodontagamain 2013.[6]Priscagamidae was originally described as a subfamily ofAgamidaecalledPriscagaminaein 1984,[2]but it was reclassified as a distinct family in 1989.[1]Mostphylogenetic analyses(analyses of evolutionary relationships) still find a close relationship between Priscagamidae and Agamidae (both have been grouped under acladecalledChamaeleontiformes[7]), although a 2015 study found it to bebasalto all other iguanian clades, warranting its removal from Iguania and placement in a larger clade calledIguanomorpha.[8]
| Priscagamidae Temporal range:Late Cretaceous-Eocene,
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Scientific classification
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Iguania |
| Family: | †Priscagamidae Borsuk-Białynicka and Moody,1984[1] |
| Genera | |
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†Heterodontagama | |
| Synonyms | |
References
edit- ^abcAlifanov, V.R. (1989). "New priscagamids (Lacertilia) from the Upper Cretaceous of Mongolia and their systematic position among Iguania".Paleontological Journal.4:68–80.
- ^abcBorsuk-Białynicka, M.; Moody, S.M. (1984)."Priscagaminae, a new subfamily of the Agamidae (Sauria) from the Late Cretaceous of the Gobi Desert".Acta Palaeontologica Polonica.29(1–2): 51–81.
- ^ab"†Priscagaminae Borsuk-Bialynicka and Moody 1984".Paleobiology Database.Fossilworks.Retrieved6 November2023.
- ^V. Alifanov (1993)."Some peculiarities of the Cretaceous and Palaeogene lizard faunas of the Mongolian People's Republic".Darmstädter Beiträge zur Naturgeschichte.3(9–13).
- ^Gao, K.; and Norell, M. (2000)."Taxonomic composition and systematics of late Cretaceous lizard assemblages from Ukhaa Tolgod and adjacent localities, Mongolian Gobi Desert".Bulletin of the American Museum of Natural History.249:1–117.doi:10.1206/0003-0090(2000)249<0001:TCASOL>2.0.CO;2.hdl:2246/1596.S2CID129367764.
- ^Rana, R.S.; Augé, M.; Folie, A.; Rose, K.D.; Kumar, K.; Singh, L.; Sahni, A.; Smith, T. (2013)."High diversity of acrodontan lizards in the Early Eocene Vastan lignite mine of India".Geologica Belgica.16(4): 290–301.
- ^Daza, J. D.; Abdala, V.; Arias, J. S.; García-López, D.; Ortiz, P. (2012). "Cladistic analysis of Iguania and a fossil lizard from the Late Pliocene of northwestern Argentina".Journal of Herpetology.46:104–119.doi:10.1670/10-112.hdl:11336/61054.S2CID85405843.
- ^Conrad, Jack L. (2015)."A new Eocene casquehead lizard (Reptilia, Corytophanidae) from North America".PLOS ONE.10(7): e0127900.Bibcode:2015PLoSO..1027900C.doi:10.1371/journal.pone.0127900.PMC4489568.PMID26131767.
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